井约束反演技术在白云岩缝洞型储集层预测中的应用  

Application of Log-Constraint Seismic Inversion to Dolomite Fractured-Vuggy Reservoirs

作　　者：张永华[1] 赵雨晴[2] 杨道庆[1] 孙耀华[1] 闫福旺[1] 田小敏[1] 

机构地区：[1]中国石化河南油田分公司勘探开发研究院,河南南阳473132 [2]中国石化河南油田分公司地调处,河南南阳473132

出　　处：《新疆石油地质》2006年第2期219-222,共4页Xinjiang Petroleum Geology

摘　　要：白云岩裂缝型储集层预测技术是目前在勘探开发中迫切需要解决的问题。以泌阳凹陷中央深凹区白云岩缝洞油气藏为例,分析了井约束反演技术在裂缝型油藏描述中面临的技术难题,并提出了相应的解决办法。首先从单井储集层划分对比入手,建立储集层沉积模式,在测井曲线校正和子波分析的基础上,进行储集层精细标定、多井约束地震反演和孔隙度约束反演。通过精细解释和综合分析,预测了裂缝型储集层分布范围,刻画了孔隙度空间展布特征,以此为基础在白云岩区新增控制储量991×104t.Technique for prediction of dolomite fractured reservoir has been quite urgent for petroleum exploration and development in Biyang sag. Taking the dolomite ffactured-vuggy reservoir in Biyang central deep sag area as an example, the key problem of low- constraint inversion application to fractured-vuggy reservoir description is analyzed, and corresponding solutions are suggested. Starting with single well reservoir classification and correlation, the deposition model is firstly developed, and then detailed reservoir calibration, muhiwell constraint seismic inversion and porosity constraint inversion are conducted, based on the well logs correction and the wavelet analysis. Finally, through detailed interpretation and composite analysis, such a reservoir＇s distribution scope is predicted, the porosity distribution features are delineated, by which the newly incremental eontM reserves of 991× 10^4 t have been obtained in this area.

关 键 词：泌阳凹陷 白云岩 反演 裂缝 综合解释 

分 类 号：P631.44[天文地球—地质矿产勘探] TE345[天文地球—地质学]